668740436
668,740,436 is an even composite number composed of four prime numbers multiplied together.
668740436 is an even composite number. It is composed of four distinct prime numbers multiplied together. It has a total of seventy-two divisors.
Prime factorization of 668740436:
22 × 72 × 133 × 1553
(2 × 2 × 7 × 7 × 13 × 13 × 13 × 1553)See below for interesting mathematical facts about the number 668740436 from the Numbermatics database.
Names of 668740436
- Cardinal: 668740436 can be written as Six hundred sixty-eight million, seven hundred forty thousand, four hundred thirty-six.
Scientific notation
- Scientific notation: 6.68740436 × 108
Factors of 668740436
Divisors of 668740436
- Number of divisors d(n): 72
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Complete list of divisors:
1 2 4 7 13 14 26 28 49 52 91 98 169 182 196 338 364 637 676 1183 1274 1553 2197 2366 2548 3106 4394 4732 6212 8281 8788 10871 15379 16562 20189 21742 30758 33124 40378 43484 61516 76097 80756 107653 141323 152194 215306 262457 282646 304388 430612 524914 565292 989261 1049828 1837199 1978522 3411941 3674398 3957044 6823882 7348796 12860393 13647764 23883587 25720786 47767174 51441572 95534348 167185109 334370218 668740436
- Sum of all divisors σ(n): 1475709480
- Sum of proper divisors (its aliquot sum) s(n): 806969044
- 668740436 is an abundant number, because the sum of its proper divisors (806969044) is greater than itself. Its abundance is 138228608
Bases of 668740436
- Binary: 1001111101110000101011010101002
- Hexadecimal: 0x27DC2B54
- Base-36: B25FF8
Squares and roots of 668740436
- 668740436 squared (6687404362) is 447213770741470096
- 668740436 cubed (6687404363) is 299069932030854755280001856
-
The
square root of 668740436 is 25860.0161639549 -
The
cube root of 668740436 is 874.4853293327
Scales and comparisons
How big is 668740436?- 668,740,436 seconds is equal to 21 years, 13 weeks, 5 days, 1 hour, 13 minutes, 56 seconds.
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To count from 1 to 668,740,436 would take you about thirty-one years!
This is a very rough estimate, based on a speaking rate of half a second every third order of magnitude. If you speak quickly, you could probably say any randomly-chosen number between one and a thousand in around half a second. Very big numbers obviously take longer to say, so we add half a second for every extra x1000. (We do not count involuntary pauses, bathroom breaks or the necessity of sleep in our calculation!)
- A cube with a volume of 668740436 cubic inches would be around 72.9 feet tall.
Recreational maths with 668740436
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